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