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