One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,10)(5,15)(7,9)(8,11)(12,13)(14,16)(17,18,23,29)(19,24,31,32)(20,26,30,25)(21,22,28,27)(34,36)(35,41)(40,44)(43,45)(1,3,8,7)(2,9,11,6)(4,12,5,14)(10,16,15,13)(17,19)(18,24)(20,27)(21,26)(22,30)(23,31)(25,28)(29,32)(33,34,38,36)(35,39,41,42)(37,40,46,44)(43,47,45,48)(1,4,8,5)(2,10,11,15)(3,12,7,14)(6,13,9,16)(17,20)(18,25)(19,22)(21,24)(23,30)(26,29)(27,31)(28,32)(33,35)(34,39)(36,42)(37,43)(38,41)(40,47)(44,48)(45,46)(1,5,8,4)(2,10,11,15)(3,12,7,14)(6,16,9,13)(17,20)(18,26)(19,27)(21,24)(22,31)(23,30)(25,29)(28,32)(33,36,38,34)(35,42,41,39)(37,40,46,44)(43,47,45,48)(1,6)(2,3)(4,13)(5,16)(7,11)(8,9)(10,12)(14,15)(17,21)(18,27)(19,26)(20,24)(22,29)(23,28)(25,31)(30,32)(33,35)(34,39)(36,42)(37,45)(38,41)(40,48)(43,46)(44,47) involution — undirected(1,7,8,3)(2,9,11,6)(4,14,5,12)(10,16,15,13)(17,22,23,27)(18,28,29,21)(19,30,31,20)(24,25,32,26)(33,37)(34,40)(35,43)(36,44)(38,46)(39,47)(41,45)(42,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.