One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,10)(3,6,9,15)(4,5,8,14)(11,12,13,16)(17,18)(19,28)(20,22)(21,30)(23,27)(24,31)(25,32)(26,29)(34,39)(36,42)(40,46)(44,48)(1,3)(2,6)(4,11)(5,12)(7,9)(8,13)(10,15)(14,16)(17,19)(18,24)(20,29)(21,32)(22,30)(23,31)(25,26)(27,28)(35,43)(40,46)(44,48)(45,47) involution — undirected(3,9)(6,15)(11,13)(12,16)(17,20,23,32)(18,25,27,22)(19,29,31,21)(24,26,28,30)(33,34)(35,40)(36,41)(37,42)(38,39)(43,46)(44,47)(45,48)(1,4)(2,5)(3,11)(6,12)(7,8)(9,13)(10,14)(15,16)(17,21)(18,26)(19,20)(22,24)(23,29)(25,28)(27,30)(31,32)(33,35,38,43)(34,40,39,46)(36,44,42,48)(37,45,41,47)(1,5)(2,8)(3,12)(4,10)(6,13)(7,14)(9,16)(11,15)(17,19)(18,24)(20,29)(21,32)(22,30)(23,31)(25,26)(27,28)(33,36,38,42)(34,41,39,37)(35,44,43,48)(40,47,46,45)(1,6,7,15)(2,9,10,3)(4,12,8,16)(5,13,14,11)(17,22,23,25)(18,20,27,32)(19,30,31,26)(21,24,29,28)(33,37,38,41)(34,42,39,36)(35,45,43,47)(40,48,46,44)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.